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- <?php
- /* For licensing terms, see /license.txt */
- use ChamiloSession as Session;
- /**
- * Exercise list: This script shows the list of exercises for administrators and students.
- *
- * @package chamilo.exercise
- *
- * @author Olivier Brouckaert, original author
- * @author Denes Nagy, HotPotatoes integration
- * @author Wolfgang Schneider, code/html cleanup
- * @author Julio Montoya <gugli100@gmail.com>, lots of cleanup + several improvements
- * Modified by hubert.borderiou (question category)
- */
- require_once __DIR__.'/../inc/global.inc.php';
- $current_course_tool = TOOL_QUIZ;
- // Setting the tabs
- $this_section = SECTION_COURSES;
- $htmlHeadXtra[] = api_get_asset('qtip2/jquery.qtip.min.js');
- $htmlHeadXtra[] = api_get_css_asset('qtip2/jquery.qtip.min.css');
- api_protect_course_script(true);
- $limitTeacherAccess = api_get_configuration_value('limit_exercise_teacher_access');
- $check = Security::get_existing_token('get');
- $currentUrl = api_get_self().'?'.api_get_cidreq();
- require_once 'hotpotatoes.lib.php';
- /* Constants and variables */
- $is_allowedToEdit = api_is_allowed_to_edit(null, true);
- $is_tutor = api_is_allowed_to_edit(true);
- $is_tutor_course = api_is_course_tutor();
- $courseInfo = api_get_course_info();
- $courseId = $courseInfo['real_id'];
- $userInfo = api_get_user_info();
- $userId = $userInfo['id'];
- $sessionId = api_get_session_id();
- $isDrhOfCourse = CourseManager::isUserSubscribedInCourseAsDrh(
- $userId,
- $courseInfo
- );
- $TBL_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
- $TBL_ITEM_PROPERTY = Database::get_course_table(TABLE_ITEM_PROPERTY);
- $TBL_EXERCISE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $TBL_EXERCISES = Database::get_course_table(TABLE_QUIZ_TEST);
- $TBL_TRACK_EXERCISES = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
- // document path
- $documentPath = api_get_path(SYS_COURSE_PATH).$courseInfo['path'].'/document';
- // picture path
- $picturePath = $documentPath.'/images';
- // audio path
- $audioPath = $documentPath.'/audio';
- // hot potatoes
- $uploadPath = DIR_HOTPOTATOES; //defined in main_api
- $exercisePath = api_get_self();
- $exfile = explode('/', $exercisePath);
- $exfile = strtolower($exfile[count($exfile) - 1]);
- $exercisePath = substr($exercisePath, 0, strpos($exercisePath, $exfile));
- $exercisePath = $exercisePath.'exercise.php';
- // Clear the exercise session
- Exercise::cleanSessionVariables();
- //General POST/GET/SESSION/COOKIES parameters recovery
- $origin = api_get_origin();
- $choice = isset($_REQUEST['choice']) ? Security::remove_XSS($_REQUEST['choice']) : null;
- $hpchoice = isset($_REQUEST['hpchoice']) ? Security::remove_XSS($_REQUEST['hpchoice']) : null;
- $exerciseId = isset($_REQUEST['exerciseId']) ? (int) $_REQUEST['exerciseId'] : null;
- $file = isset($_REQUEST['file']) ? Database::escape_string($_REQUEST['file']) : null;
- $learnpath_id = isset($_REQUEST['learnpath_id']) ? (int) $_REQUEST['learnpath_id'] : null;
- $learnpath_item_id = isset($_REQUEST['learnpath_item_id']) ? (int) $_REQUEST['learnpath_item_id'] : null;
- $categoryId = isset($_REQUEST['category_id']) ? (int) $_REQUEST['category_id'] : 0;
- $action = isset($_REQUEST['action']) ? $_REQUEST['action'] : '';
- $keyword = isset($_REQUEST['keyword']) ? Security::remove_XSS($_REQUEST['keyword']) : '';
- if (api_is_in_gradebook()) {
- $interbreadcrumb[] = [
- 'url' => Category::getUrl(),
- 'name' => get_lang('ToolGradebook'),
- ];
- }
- $nameTools = get_lang('Exercises');
- // Simple actions
- if ($is_allowedToEdit) {
- switch ($action) {
- case 'clean_all_test':
- if ($check) {
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- api_not_allowed(true);
- }
- // list of exercises in a course/session
- // we got variable $courseId $courseInfo session api_get_session_id()
- $exerciseList = ExerciseLib::get_all_exercises_for_course_id(
- $courseInfo,
- $sessionId,
- $courseId,
- false
- );
- $quantity_results_deleted = 0;
- foreach ($exerciseList as $exeItem) {
- // delete result for test, if not in a gradebook
- $exercise_action_locked = api_resource_is_locked_by_gradebook($exeItem['id'], LINK_EXERCISE);
- if ($exercise_action_locked == false) {
- $objExerciseTmp = new Exercise();
- if ($objExerciseTmp->read($exeItem['id'])) {
- $quantity_results_deleted += $objExerciseTmp->cleanResults(true);
- }
- }
- }
- Display::addFlash(Display::return_message(
- sprintf(
- get_lang('XResultsCleaned'),
- $quantity_results_deleted
- ),
- 'confirm'
- ));
- header('Location: '.$currentUrl);
- exit;
- }
- break;
- case 'exportqti2':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- api_not_allowed(true);
- }
- require_once api_get_path(SYS_CODE_PATH).'exercise/export/qti2/qti2_export.php';
- $export = export_exercise_to_qti($exerciseId, true);
- $archive_path = api_get_path(SYS_ARCHIVE_PATH);
- $temp_dir_short = api_get_unique_id();
- $temp_zip_dir = $archive_path.$temp_dir_short;
- if (!is_dir($temp_zip_dir)) {
- mkdir($temp_zip_dir, api_get_permissions_for_new_directories());
- }
- $temp_zip_file = $temp_zip_dir.'/'.api_get_unique_id().'.zip';
- $temp_xml_file = $temp_zip_dir.'/qti2export_'.$exerciseId.'.xml';
- file_put_contents($temp_xml_file, $export);
- $xmlReader = new XMLReader();
- $xmlReader->open($temp_xml_file);
- $xmlReader->setParserProperty(XMLReader::VALIDATE, true);
- $isValid = $xmlReader->isValid();
- if ($isValid) {
- $zip_folder = new PclZip($temp_zip_file);
- $zip_folder->add($temp_xml_file, PCLZIP_OPT_REMOVE_ALL_PATH);
- $name = 'qti2_export_'.$exerciseId.'.zip';
- DocumentManager::file_send_for_download($temp_zip_file, true, $name);
- unlink($temp_zip_file);
- unlink($temp_xml_file);
- rmdir($temp_zip_dir);
- exit; // otherwise following clicks may become buggy
- } else {
- Display::addFlash(Display::return_message(get_lang('ErrorWritingXMLFile'), 'error'));
- header('Location: '.$currentUrl);
- exit;
- }
- break;
- case 'up_category':
- case 'down_category':
- $categoryIdFromGet = isset($_REQUEST['category_id_edit']) ? $_REQUEST['category_id_edit'] : 0;
- $em = Database::getManager();
- $repo = $em->getRepository('ChamiloCourseBundle:CExerciseCategory');
- $category = $repo->find($categoryIdFromGet);
- $currentPosition = $category->getPosition();
- if ($action === 'up_category') {
- $currentPosition--;
- } else {
- $currentPosition++;
- }
- $category->setPosition($currentPosition);
- $em->persist($category);
- $em->flush();
- Display::addFlash(Display::return_message(get_lang('Updated')));
- header('Location: '.$currentUrl);
- exit;
- break;
- }
- }
- // Mass actions
- if (!empty($action) && $is_allowedToEdit) {
- $exerciseListToEdit = isset($_REQUEST['id']) ? $_REQUEST['id'] : 0;
- if (!empty($exerciseListToEdit)) {
- foreach ($exerciseListToEdit as $exerciseIdToEdit) {
- $objExerciseTmp = new Exercise();
- $result = $objExerciseTmp->read($exerciseIdToEdit);
- if (empty($result)) {
- continue;
- }
- switch ($action) {
- case 'delete':
- $objExerciseTmp->delete();
- break;
- case 'visible':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // enables an exercise
- if (empty($sessionId)) {
- $objExerciseTmp->enable();
- $objExerciseTmp->save();
- } else {
- if (!empty($objExerciseTmp->sessionId)) {
- $objExerciseTmp->enable();
- $objExerciseTmp->save();
- }
- }
- api_item_property_update(
- $courseInfo,
- TOOL_QUIZ,
- $objExerciseTmp->id,
- 'visible',
- $userId
- );
- break;
- case 'invisible':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // enables an exercise
- if (empty($sessionId)) {
- $objExerciseTmp->disable();
- $objExerciseTmp->save();
- } else {
- if (!empty($objExerciseTmp->sessionId)) {
- $objExerciseTmp->disable();
- $objExerciseTmp->save();
- }
- }
- api_item_property_update(
- $courseInfo,
- TOOL_QUIZ,
- $objExerciseTmp->id,
- 'visible',
- $userId
- );
- break;
- }
- }
- Display::addFlash(Display::return_message(get_lang('Updated')));
- header('Location: '.$currentUrl);
- exit;
- }
- }
- Event::event_access_tool(TOOL_QUIZ);
- $logInfo = [
- 'tool' => TOOL_QUIZ,
- 'tool_id' => (int) $exerciseId,
- 'action' => isset($_REQUEST['learnpath_id']) ? 'learnpath_id' : '',
- 'action_details' => isset($_REQUEST['learnpath_id']) ? (int) $_REQUEST['learnpath_id'] : '',
- ];
- Event::registerLog($logInfo);
- HotPotGCt($documentPath, 1, $userId);
- // Only for administrator
- if ($is_allowedToEdit) {
- if (!empty($choice)) {
- // single exercise choice
- // construction of Exercise
- $objExerciseTmp = new Exercise();
- $exercise_action_locked = api_resource_is_locked_by_gradebook(
- $exerciseId,
- LINK_EXERCISE
- );
- if ($objExerciseTmp->read($exerciseId)) {
- if ($check) {
- switch ($choice) {
- case 'enable_launch':
- $objExerciseTmp->cleanCourseLaunchSettings();
- $objExerciseTmp->enableAutoLaunch();
- Display::addFlash(Display::return_message(get_lang('Updated')));
- break;
- case 'disable_launch':
- $objExerciseTmp->cleanCourseLaunchSettings();
- break;
- case 'delete':
- // deletes an exercise
- $result = $objExerciseTmp->delete();
- if ($result) {
- Display::addFlash(Display::return_message(get_lang('ExerciseDeleted'), 'confirmation'));
- }
- break;
- case 'enable':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // Enables an exercise
- if (empty($sessionId)) {
- $objExerciseTmp->enable();
- $objExerciseTmp->save();
- } else {
- if (!empty($objExerciseTmp->sessionId)) {
- $objExerciseTmp->enable();
- $objExerciseTmp->save();
- }
- }
- api_item_property_update(
- $courseInfo,
- TOOL_QUIZ,
- $objExerciseTmp->id,
- 'visible',
- $userId
- );
- Display::addFlash(Display::return_message(get_lang('VisibilityChanged'), 'confirmation'));
- break;
- case 'disable':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // disables an exercise
- if (empty($sessionId)) {
- $objExerciseTmp->disable();
- $objExerciseTmp->save();
- } else {
- // Only change active if it belongs to a session
- if (!empty($objExerciseTmp->sessionId)) {
- $objExerciseTmp->disable();
- $objExerciseTmp->save();
- }
- }
- api_item_property_update(
- $courseInfo,
- TOOL_QUIZ,
- $objExerciseTmp->id,
- 'invisible',
- $userId
- );
- Display::addFlash(Display::return_message(get_lang('VisibilityChanged'), 'confirmation'));
- break;
- case 'disable_results':
- //disable the results for the learners
- $objExerciseTmp->disable_results();
- $objExerciseTmp->save();
- Display::addFlash(Display::return_message(get_lang('ResultsDisabled'), 'confirmation'));
- break;
- case 'enable_results':
- //disable the results for the learners
- $objExerciseTmp->enable_results();
- $objExerciseTmp->save();
- Display::addFlash(Display::return_message(get_lang('ResultsEnabled'), 'confirmation'));
- break;
- case 'clean_results':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // Clean student results
- if ($exercise_action_locked == false) {
- $quantity_results_deleted = $objExerciseTmp->cleanResults(true);
- $title = $objExerciseTmp->selectTitle();
- Display::addFlash(
- Display::return_message(
- $title.': '.sprintf(
- get_lang('XResultsCleaned'),
- $quantity_results_deleted
- ),
- 'confirmation'
- )
- );
- }
- break;
- case 'copy_exercise': //copy an exercise
- api_set_more_memory_and_time_limits();
- $objExerciseTmp->copyExercise();
- Display::addFlash(Display::return_message(
- get_lang('ExerciseCopied'),
- 'confirmation'
- ));
- break;
- }
- header('Location: '.$currentUrl);
- exit;
- }
- }
- // destruction of Exercise
- unset($objExerciseTmp);
- Security::clear_token();
- }
- if (!empty($hpchoice)) {
- switch ($hpchoice) {
- case 'delete':
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- // deletes an exercise
- $imgparams = [];
- $imgcount = 0;
- GetImgParams($file, $documentPath, $imgparams, $imgcount);
- $fld = GetFolderName($file);
- for ($i = 0; $i < $imgcount; $i++) {
- my_delete($documentPath.$uploadPath."/".$fld."/".$imgparams[$i]);
- DocumentManager::updateDbInfo("delete", $uploadPath."/".$fld."/".$imgparams[$i]);
- }
- if (!is_dir($documentPath.$uploadPath."/".$fld."/")) {
- my_delete($documentPath.$file);
- DocumentManager::updateDbInfo("delete", $file);
- } else {
- if (my_delete($documentPath.$file)) {
- DocumentManager::updateDbInfo("delete", $file);
- }
- }
- /* hotpotatoes folder may contains several tests so
- don't delete folder if not empty :
- http://support.chamilo.org/issues/2165
- */
- if (!(strstr($uploadPath, DIR_HOTPOTATOES) &&
- !folder_is_empty($documentPath.$uploadPath."/".$fld."/"))
- ) {
- my_delete($documentPath.$uploadPath."/".$fld."/");
- }
- break;
- case 'enable': // enables an exercise
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- $newVisibilityStatus = '1'; //"visible"
- $query = "SELECT id FROM $TBL_DOCUMENT
- WHERE c_id = $courseId AND path='".Database::escape_string($file)."'";
- $res = Database::query($query);
- $row = Database :: fetch_array($res, 'ASSOC');
- api_item_property_update(
- $courseInfo,
- TOOL_DOCUMENT,
- $row['id'],
- 'visible',
- $userId
- );
- Display::addFlash(Display::return_message(get_lang('Updated')));
- break;
- case 'disable': // disables an exercise
- if ($limitTeacherAccess && !api_is_platform_admin()) {
- // Teacher change exercise
- break;
- }
- $newVisibilityStatus = '0'; //"invisible"
- $query = "SELECT id FROM $TBL_DOCUMENT
- WHERE c_id = $courseId AND path='".Database::escape_string($file)."'";
- $res = Database::query($query);
- $row = Database :: fetch_array($res, 'ASSOC');
- api_item_property_update(
- $courseInfo,
- TOOL_DOCUMENT,
- $row['id'],
- 'invisible',
- $userId
- );
- break;
- default:
- break;
- }
- header('Location: '.$currentUrl);
- exit;
- }
- }
- if ($origin !== 'learnpath') {
- //so we are not in learnpath tool
- Display::display_header($nameTools, get_lang('Exercise'));
- if (isset($_GET['message']) && in_array($_GET['message'], ['ExerciseEdited'])) {
- echo Display::return_message(get_lang('ExerciseEdited'), 'confirmation');
- }
- } else {
- Display::display_reduced_header();
- }
- Display::display_introduction_section(TOOL_QUIZ);
- // Selects $limit exercises at the same time
- // maximum number of exercises on a same page
- $limit = Exercise::PAGINATION_ITEMS_PER_PAGE;
- HotPotGCt($documentPath, 1, $userId);
- $token = Security::get_token();
- if ($is_allowedToEdit && $origin !== 'learnpath') {
- $actionsLeft = '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/exercise_admin.php?'.api_get_cidreq().'">'.
- Display::return_icon('new_exercice.png', get_lang('NewEx'), '', ICON_SIZE_MEDIUM).'</a>';
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/question_create.php?'.api_get_cidreq().'">'.
- Display::return_icon('new_question.png', get_lang('AddQ'), '', ICON_SIZE_MEDIUM).'</a>';
- if (api_get_configuration_value('allow_exercise_categories')) {
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/category.php?'.api_get_cidreq().'">';
- $actionsLeft .= Display::return_icon('folder.png', get_lang('Category'), '', ICON_SIZE_MEDIUM);
- $actionsLeft .= '</a>';
- }
- // Question category
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/tests_category.php?'.api_get_cidreq().'">';
- $actionsLeft .= Display::return_icon('green_open.png', get_lang('QuestionCategory'), '', ICON_SIZE_MEDIUM);
- $actionsLeft .= '</a>';
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/question_pool.php?'.api_get_cidreq().'">';
- $actionsLeft .= Display::return_icon('database.png', get_lang('QuestionPool'), '', ICON_SIZE_MEDIUM);
- $actionsLeft .= '</a>';
- //echo Display::url(Display::return_icon('looknfeel.png', get_lang('Media')), 'media.php?' . api_get_cidreq());
- // end question category
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/hotpotatoes.php?'.api_get_cidreq().'">'.
- Display::return_icon('import_hotpotatoes.png', get_lang('ImportHotPotatoesQuiz'), '', ICON_SIZE_MEDIUM).'</a>';
- // link to import qti2 ...
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/qti2.php?'.api_get_cidreq().'">'.
- Display::return_icon('import_qti2.png', get_lang('ImportQtiQuiz'), '', ICON_SIZE_MEDIUM).'</a>';
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/aiken.php?'.api_get_cidreq().'">'.
- Display::return_icon('import_aiken.png', get_lang('ImportAikenQuiz'), '', ICON_SIZE_MEDIUM).'</a>';
- $actionsLeft .= '<a href="'.api_get_path(WEB_CODE_PATH).'exercise/upload_exercise.php?'.api_get_cidreq().'">'.
- Display::return_icon('import_excel.png', get_lang('ImportExcelQuiz'), '', ICON_SIZE_MEDIUM).'</a>';
- $cleanAll = Display::url(
- Display::return_icon(
- 'clean_all.png',
- get_lang('CleanAllStudentsResultsForAllTests'),
- '',
- ICON_SIZE_MEDIUM
- ),
- '#',
- [
- 'data-item-question' => addslashes(get_lang('AreYouSureToEmptyAllTestResults')),
- 'data-href' => api_get_path(WEB_CODE_PATH).'exercise/exercise.php?'.api_get_cidreq().'&action=clean_all_test&sec_token='.$token,
- 'data-toggle' => 'modal',
- 'data-target' => '#confirm-delete',
- ]
- );
- if ($limitTeacherAccess) {
- if (api_is_platform_admin()) {
- $actionsLeft .= $cleanAll;
- }
- } else {
- $actionsLeft .= $cleanAll;
- }
- // Create a search-box
- $form = new FormValidator('search_simple', 'get', $currentUrl, null, null, FormValidator::LAYOUT_INLINE);
- $form->addCourseHiddenParams();
- if (api_get_configuration_value('allow_exercise_categories')) {
- $manager = new ExerciseCategoryManager();
- $options = $manager->getCategoriesForSelect(api_get_course_int_id());
- if (!empty($options)) {
- $form->addSelect(
- 'category_id',
- get_lang('Category'),
- $options,
- ['placeholder' => get_lang('SelectAnOption'), 'disable_js' => true]
- );
- }
- }
- $form->addText(
- 'keyword',
- get_lang('Search'),
- false,
- [
- 'aria-label' => get_lang('Search'),
- ]
- );
- $form->addButtonSearch(get_lang('Search'));
- $actionsRight = $form->returnForm();
- }
- if ($is_allowedToEdit) {
- echo Display::toolbarAction(
- 'toolbarUser',
- [$actionsLeft, '', $actionsRight],
- [6, 1, 5]
- );
- }
- if (api_get_configuration_value('allow_exercise_categories') === false) {
- echo Exercise::exerciseGrid(0, $keyword);
- } else {
- if (empty($categoryId)) {
- echo Display::page_subheader(get_lang('NoCategory'));
- echo Exercise::exerciseGrid(0, $keyword);
- $counter = 0;
- $manager = new ExerciseCategoryManager();
- $categories = $manager->getCategories($courseId);
- $modifyUrl = api_get_self().'?'.api_get_cidreq();
- $total = count($categories);
- $upIcon = Display::return_icon('up.png', get_lang('MoveUp'));
- $downIcon = Display::return_icon('down.png', get_lang('MoveDown'));
- /** @var \Chamilo\CourseBundle\Entity\CExerciseCategory $category */
- foreach ($categories as $category) {
- $categoryIdItem = $category->getId();
- $up = '';
- $down = '';
- if ($is_allowedToEdit) {
- $up = Display::url($upIcon, $modifyUrl.'&action=up_category&category_id_edit='.$categoryIdItem);
- if ($counter === 0) {
- $up = Display::url(Display::return_icon('up_na.png'), '#');
- }
- $down = Display::url($downIcon, $modifyUrl.'&action=down_category&category_id_edit='.$categoryIdItem);
- $counter++;
- if ($total === $counter) {
- $down = Display::url(Display::return_icon('down_na.png'), '#');
- }
- }
- echo Display::page_subheader($category->getName().$up.$down);
- echo Exercise::exerciseGrid($category->getId(), $keyword);
- }
- } else {
- $manager = new ExerciseCategoryManager();
- $category = $manager->get($categoryId);
- echo Display::page_subheader($category['name']);
- echo Exercise::exerciseGrid($category['id'], $keyword);
- }
- }
- if ($origin !== 'learnpath') {
- // We are not in learnpath tool
- Display::display_footer();
- }
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